July 5th, 2024

Brain dopamine responses to ultra-processed milkshakes are highly variable

A study on brain dopamine responses to ultra-processed milkshakes in 50 adults found no significant dopamine increase in the striatum. Responses varied individually and were not linked to body mass. Research challenges the addictive food theory.

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Brain dopamine responses to ultra-processed milkshakes are highly variable

The study investigated the brain dopamine responses to ultra-processed milkshakes in 50 healthy adults with varying body mass indexes. Using positron emission tomography, researchers found that consuming the milkshake did not lead to a significant dopamine response in the brain's striatum. Additionally, the responses varied greatly among individuals and were not significantly linked to adiposity levels. The study suggests that the dopamine responses to ultra-processed milkshakes may be smaller than those induced by addictive drugs, falling below the detection limits of standard PET methods. The research was supported by the National Institutes of Health and the NIH Center on Compulsive Behaviors. The findings challenge the notion that ultra-processed foods high in fat and sugar may be addictive due to their impact on brain dopamine levels.

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